[meteorite-list] RE: NP Article, 12-1950 Meteorite Crater Found in Canada

From: Sterling K. Webb <kelly_at_meteoritecentral.com>
Date: Thu Apr 22 10:30:01 2004
Message-ID: <3F77B389.98A58E27_at_bhil.com>

Hi,

    I assume you're talking about the half circle with Umiujaq about midway
along it. Note also the Belcher Islands which could be the southernmost
portion of a central uplift.
    In the upper portion of the Bay, on the west north of Churchill and on
the east north of Inukjuak, the shores form two fairly regular arcs which
lie on a much larger circle.
    Both certainly look too good to be accidental. But they could be.
    The various pieces of the present Canadian Shield formed from nuclei of
granite batholiths, but further risings of granitic magma formed rings
around the original batholiths and then rings around the rings... And
wherever you have rings, you can erode a circle.

Sterling K. Webb
---------------------------------------------------------------------------
"Charles R. Viau" wrote:

> Waiting for the day that some news comes of the ongoing investigations
> in Hudson Bay, that huge half circle that comprises part of the bay is
> striking in its uniformity. If it turns out to be an astroblehme , it
> would certainly be the largest ever found. If not, it is the closest
> nature has ever come to eroding out an almost perfect half circle in a
> coastline. The last I heard about this suspected impact site, was a 3
> year old article published by the Canadian Geologic Survey, saying that
> it was very difficult drilling core material up there, and it may take a
> long time before any kind of analysis is available. I also got the
> impression that they were having a hard time funding the work to be
> done. I also heard that there was a larger unconformity in the land mass
> around the coast (rim?) but there was no definitive evidence that it was
> caused by an impatct as yet. Anyone know of the principles involved in
> this search, or any new news?
>
> CharlyV IMCA_4351
>
> -----Original Message-----
> From: meteorite-list-admin_at_meteoritecentral.com
> [mailto:meteorite-list-admin_at_meteoritecentral.com] On Behalf Of Charles
> O'Dale
> Sent: Sunday, September 28, 2003 7:41 AM
> To: meteorite-list_at_meteoritecentral.com
> Subject: [meteorite-list] RE: NP Article, 12-1950 Meteorite Crater Found
> in Canada
>
> Please see my article on the Chubb Crater aka New Quebec Crater aka
> Pingualuit Crater at:
>
> http://www.ottawa.rasc.ca/astronomy/earth_craters/pingualuit/index.html
>
> Thanks
> Chuck
>
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Received on Mon 29 Sep 2003 12:22:34 AM PDT